Teams that finished the year ranked by season and Iowa's results against them under KF:
1999 (0-6)
AP 3, Coaches 2 Nebraska L 7-42
AP 7, Coaches 7 @ Michigan State L 3-49
AP 11, Coaches 11 Penn State L 7-31
AP 24, Coaches 25 Illinois L 24-40
AP 4, Coaches 4 @ Wisconsin L 3-41
AP 18, Coaches 17 Minnesota L 21-25
2000 (0-4)
AP 9, Coaches 8 (Arrowhead Stadium) Kansas State L 7-27
AP 25, Coaches 23 Iowa State L 14-24
AP 8, Coaches 7 @ Nebraska L 13-42
AP 23, Coaches 24 Wisconsin L 7-13
2001 (0-1)
AP 20, Coaches 20 Michigan L 26-32
2002 (2-1)
AP 16, Coaches 15 @ Penn State W 42-35
AP 9, Coaches 9 @ Michigan W 34-9
AP 4, Coaches 4 (Orange Bowl) USC L 17-38
2003 (4-2)
AP 10, Coaches 12 Miami OH W 21-3
AP 6, Coaches 7 Michigan W 30-27
AP 4, Coaches 4 @ Ohio State L 10-19
AP 18, Coaches 19 @ Purdue L 14-27
AP 20, Coaches 17 Minnesota W 40-22
AP 24, Coaches 25 (Outback Bowl) Florida W 37-17
2004 (3-2)
AP 19, Coaches 20 @ Arizona State L 7-44
AP 14, Coaches 12 @ Michigan L 17-30
AP 20, Coaches 19 Ohio State W 33-7
AP 17, Coaches 18 Wisconsin W 30-7
AP 16, Coaches 16 (Capitol 1 Bowl) LSU W 30-25
2005 (1-2)
AP 4, Coaches 4 @ Ohio State L 6-31
AP 15, Coaches 15 @ Wisconsin 20-10
AP 12, Coaches 16 (Outback Bowl) Florida L 24-31
2006 (0-4)
AP 2, Coaches 2 Ohio State L 17-38
AP 8, Coaches 9 @ Michigan L 6-20
AP 7, Coaches 5 Wisconsin 21-24
AP 13, Coaches 13 (Alamo Bowl) Texas L 24-26
2007 (0-3)
AP 24, Coaches 21 @ Wisconsin L 13-17
AP NR, Coaches 25 @ Penn State L 7-27
AP 20, Coaches 18 @ Purdue 6-31
2008 (1-1)
AP 24, Coaches 24 @ Michigan State L 13-16
AP 8, Coaches 8 Penn State W 24-23
2009 (3-1)
AP 9, Coaches 8 @ Penn State W 21-10
AP 16, Coaches 16 @ Wisconsin W 20-10
AP 5, Coaches 5 @ Ohio State L 24-27
AP 13, Coaches 13 (Orange Bowl) Georgia Tech W 24-14
2010 (2-2)
AP 7, Coaches 8 Wisconsin L 30-31
AP 14, Coaches 14 Michigan State W 37-6
AP 5, Coaches 5 Ohio State L 17-20
AP 18, Coaches 18 (Insight Bowl) Missouri W 27-24
2011 (1-3)
AP 12, Coaches 9 Michigan W 24-16
AP 11, Coaches 10 Michigan State L 21-37
AP 24, Coaches 24 @ Nebraska L 7-20
AP 16, Coaches 15 (Insight Bowl) Oklahoma L 14-31
2012 (1-3)
AP 22, Coaches 24 (Soldier Field) Northern Illinois W 18-17
AP 17, Coaches 16 @ Northwestern L 17-28
AP 24, Coaches NR @ Michigan L 17-42
AP 25, Coaches 23 Nebraska L 7-13
2013 (1-4)
AP 3, Coaches 3 Michigan State L 14-26
AP 12, Coaches 10 @ Ohio State L 24-34
AP 22, Coaches 21 Wisconsin L 9-28
AP NR, Coaches 25 @ Nebraska W 38-17
AP 14, Coaches 14 (Outback Bowl) LSU L 14-21
2014 (0-1)
AP 13, Coaches 13 L 24-26
2015 (2-2)
AP 21, Coaches 21 @ Wisconsin W 10-6
AP 23, Coaches 22 @ Northwestern W 40-10
AP 6, Coaches 6 (Big Ten Championship) Michigan State L 13-16
AP 3, Coaches 3 (Rose Bowl) Stanford L 16-45
2016 (1-3)
AP 9, Coaches 9 Wisconsin L 9-17
AP 7, Coaches 7 @ Penn State L 14-41
AP 10, Coaches 10 Michigan W 14-13
AP 14, Coaches 13 (Outback Bowl) Florida L 3-30
2017 (1-4)
AP 8, Coaches 8 Penn State L 19-21
AP 15, Coaches 16 @ Michigan State L 10-17
AP 17, Coaches 17 @ Northwestern L 10-17
AP 5, Coaches 5 Ohio State W 55-24
AP 7, Coaches 6 @ Wisconsin 14-38
2018 (1-2)
AP 17, Coaches 17 @ Penn State L 24-30
AP 21, Coaches 19 Northwestern 10-14
AP NR, Coaches 25 (Outback Bowl) Mississippi State W 27-22
2019 (1-3)
AP 18, Coaches 19 @ Michigan L 3-10
AP 9, Coaches 9 Penn State L 12-17
AP 11, Coaches 13 @ Wisconsin L 22-24
AP 10, Coaches 10 Minnesota W 23-19
2020 (0-1)
AP 10, Coaches 10 Northwestern L 20-21
2021 (0-2)
AP 3, Coaches 3 (Big Ten Championship Game) Michigan L 3-42
AP 18, Coaches 15 (Citrus Bowl) Kentucky L 17-20
2022 (0-2)
AP 3, Coaches 3 Michigan L 14-27
AP 4, Coaches 4@ Ohio State L 10-54
2023 (0-3)*
AP 10, Coaches 10 @ Penn State L 0-31
AP 1, Coaches 1 (Big Ten Championship Game) Michigan L 0-26
AP 25, Coaches 23 CFP 21 (Citrus Bowl) Tennessee L 0-35
*Rankings subject to change after next week's National Championship